CN2851518Y - Rotating stabilizer - Google Patents
Rotating stabilizer Download PDFInfo
- Publication number
- CN2851518Y CN2851518Y CN 200520127629 CN200520127629U CN2851518Y CN 2851518 Y CN2851518 Y CN 2851518Y CN 200520127629 CN200520127629 CN 200520127629 CN 200520127629 U CN200520127629 U CN 200520127629U CN 2851518 Y CN2851518 Y CN 2851518Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- bearing
- drilling
- stabilizer
- wells
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Earth Drilling (AREA)
Abstract
The utility model relates to a rotation stabilizer used for drilling wells. The utility model is composed of a body, a centralizer, a bearing, a sealing ring, a sealing gland and bolts. The rotation stabilizer is connected with a drilling string. In the process of working in a well, the body follows the drilling string to rotate, but the centralizer does not rotate. At the same time when the stabilizer has centralizing action, the torque drilling string is greatly decreased, and the rock breaking ability of a drill is enhanced. The stabilizer plays an important role in drilling wells with large slope and large displacement, such as directional wells and horizontal wells.
Description
Technical field
The utility model relates to the downhole tool of oil, gas drilling engineering, is specifically related to a kind of drilling rig---rotating stabilize, belongs to International Classification of Patents E21B17/10 " drill string protector " technical field.
Background technology
In the drilling process of oil, natural gas, a certain position of the drill string of being everlasting connects one or several stabilizers, with Controlling Borehole Trajectory.But, existing general stabilizer, resistance is bigger in the drill string rotating process, and particularly big displacement, high-inclination directional well, horizontal well cause the drill string damage because moment of torsion is excessive, even can't carry out drillng operation.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of simple in structure, and applicability is strong, safe and reliable rotating stabilize.
A kind of rotating stabilize is made up of body, hold-down screw, seal cover, sealing ring, bearing and centralizer.Seal cover is fixed on the body by hold-down screw, and centralizer relies on bearing fixing on body.There is sealing ring to enter bearing on the bearing to prevent drilling fluid, thus the protection bearing.
Rotating stabilize of the present utility model greatly reduces the resistance of drill string, has reduced the centralizer of conventional stabilisers and the moment of torsion that the stratum friction is produced, and has improved the rock breaking capacity of drill bit.Has important role for big gradient extended reach directional well, horizontal well.And it is simple in structure, and applicability is strong, and is safe in utilization, reliable.
Description of drawings
Accompanying drawing is the structural representation of the utility model rotating stabilize.
Among the figure: 1, body, 2, hold-down screw, 3, seal cover, 4, sealing ring, 5, bearing, 6, centralizer.
The specific embodiment
As shown in drawings, the utility model device is made up of body 1, centralizer 6, bearing 5, sealing ring 4, seal cover 3 and hold-down screw 2.Centralizer 6 relies on bearing 5 fixing and rotation on body 1, and sealing ring 4 prevents that drilling fluid from entering bearing 5, thereby the protection bearing increases the service life.
Go into the well when using, rotating stabilize is connected with drill string by the screw thread that body 1 two ends are provided with, because the effect of bearing 5, when drill string rotating, body 1 rotates with drill string, and centralizer 6 contacts the boreholes wall, does not rotate.Drill string only transmits the moment of torsion that the drill bit broken formation is produced, and has reduced the centralizer of conventional stabilisers and the moment of torsion that the stratum friction is produced.The rock breaking efficiency of drill bit and the drilling duty of drill string have been improved.
Claims (2)
1, a kind of rotating stabilize is characterized in that: it is made up of body (1), hold-down screw (2), seal cover (3), sealing ring (4), bearing (5) and centralizer (6); Seal cover (3) is fixed on the body (1) by hold-down screw (2), and centralizer (6) relies on bearing (5) to be fixed on the body (1).
2, rotating stabilize according to claim 1 is characterized in that: be provided with in bearing (5) top and prevent that drilling fluid from entering the sealing ring of bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127629 CN2851518Y (en) | 2005-09-30 | 2005-09-30 | Rotating stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127629 CN2851518Y (en) | 2005-09-30 | 2005-09-30 | Rotating stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851518Y true CN2851518Y (en) | 2006-12-27 |
Family
ID=37585474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520127629 Expired - Lifetime CN2851518Y (en) | 2005-09-30 | 2005-09-30 | Rotating stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851518Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074596B (en) * | 2007-06-19 | 2011-01-26 | 西安石油大学 | Diameter variable location stabilizer |
| CN102943635A (en) * | 2012-11-21 | 2013-02-27 | 中国石油大学(北京) | Diameter-changing and friction-reducing drill column centralizer |
-
2005
- 2005-09-30 CN CN 200520127629 patent/CN2851518Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074596B (en) * | 2007-06-19 | 2011-01-26 | 西安石油大学 | Diameter variable location stabilizer |
| CN102943635A (en) * | 2012-11-21 | 2013-02-27 | 中国石油大学(北京) | Diameter-changing and friction-reducing drill column centralizer |
| CN102943635B (en) * | 2012-11-21 | 2015-04-15 | 中国石油大学(北京) | Diameter-changing and friction-reducing drill column centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING PETROLOR OILFIELD SERVICES CO., LTD. Free format text: FORMER NAME: BEIJING PETROLOR DRILLING TECHNOLOGY SERVICE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100040 Beijing city Fengtai District Wu Village No. 3 B Beijing pat Rolle drilling technology service company Patentee after: Pat Rolle Beijing oilfield services company Address before: 100040 Beijing city Fengtai District Wu Village No. 3 B Beijing pat Rolle drilling technology service company Patentee before: Beijing Paiteluoer Drilling Technology Service Co.Ltd |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |